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Finding the Fourth Proportional to 358,354.98, 494,529.93 and 197,221.50

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Solution

The fourth proportional to 358,354.98, 494,529.93 and 197,221.50 is: 272,165.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,354.98 : 494,529.93 = 197,221.50 : x
  2. Step 2: Convert to fraction form
    358,354.98/494,529.93 = 197,221.50/x
  3. Step 3: Cross multiply
    358,354.98x = 494,529.93 × 197,221.50
  4. Step 4: Simplify right side
    358,354.98x = 97,531,934,589.50
  5. Step 5: Solve for x
    x = 97,531,934,589.50/358,354.98
  6. Step 6: Final answer
    x = 272,165.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.